101 citations · 292 across the 12 of their papers we have counts for
7 papers · 1 filter
Holonomy Transformation in the FRW Metric
A. M. de M. Carvalho, Claudio Furtado
In this work we investigate loop variables in Friedman-Robertson-Walker spacetime. We analyze the parallel transport of vectors and spinors in several paths in this spacetime in or…
Gravitacional field of a global defect
D. Bazeia, C. Furtado, A. R. Gomes
Global topological defects described by real scalar field in (3,1) dimensions coupled to gravity are analyzed. We consider a class of scalar potentials with explicit dependence wit…
Bound states in the dynamics of a dipole in the presence of a conical defect
C. A. de Lima Ribeiro, Claudio Furtado, Fernando Moraes
In this work we investigate the quantum dynamics of an electric dipole in a -dimensional conical spacetime. For specific conditions, the Schrödinger equation is solved and b…
The self-energy of a charged particle in the presence of a topological defect distribution
A. M. de M. Carvalho, Fernando Moraes, Claudio Furtado
In this work we study a charged particle in the presence of both a continuous distribution of disclinations and a continuous distribution of edge dislocations in the framework of t…
Holonomy, Aharonov-Bohm effect and phonon scattering in superfluids
Claudio Furtado, A. M. de M. Carvalho, L. C. Garcia de Andrade +1
In this article we discuss the analogy between superfluids and a spinning thick cosmic string. We use the geometrical approach to obtain the geometrical phases for a phonon in the…
Loop variables and gravitational Berry's quantum phase in the space-time of a rotating massive body
J. G. de Assis, V. B. Bezerra, C. Furtado
In this paper we compute the holonomies along curves in the gravitational field of a slowly rotating massive body. We use our results to study the gravitational analogue of Aharano…